My sincere thanks to Mehdi Kootiarab, MBA, MCIPS of Saudi Aramco for his most generous posting on Trustpilot.com concerning the Lean Six Sigma class that I presented to him in London in December together with my colleague Chris Alcock. We do strive to provide the very highest quality of Lean Six Sigma training and it is very rewarding for us to obtain such positive feedback as this from our students. Thank you Mehdi !